air pollution p77 UPDATED

how is carbon monoxide produced

when fossil fuels are burnt WITHOUT enough air supply

how do humans mostly produce carbon monoxide

it is mostly released in car emissions

why is carbon monoxide bad (2)

- it is a poisonous gas

- if it combines with haemoglobin in RBCs, it prevents them from carrying oxygen

what thing in modern cars decrease the amount of CO released into the atmosphere

most modern cars are fitted with catalytic converters

they turn carbon monoxide into CO2

what gases are produced when fossil fuels are burnt

- CO2

- sulfur dioxide

human activities that produce sulfur dioxide

- burning fossil fuels at power stations

- burning fossil fuels in internal combustion engines in cars

why can sulfur dioxide be produced from burning fossil fuels

it comes from sulfur impurities in the fossil fuels

how is acid rain formed from sulfur dioxide

- the gas can mix with rain clouds

- this forms dilute sulfuric acid

- this then falls as acid rian

what other gas can cause acid rain and how is this gas produced

- nitrogen oxides

- prduced by burning fossil fuels

what does acid rain do to a lake

makes it become more acidic

why can a lake becoming more acidic be bad (2)

- many organisms are sensitive to changes in pH + can't survive in more acidic conditions

- means that many plants and animals die

how can acid rain kill trees (3)

- acid damages leaves

- acid releases toxic substances from the soil

- this makes it hard the for trees to take up nutrients